Can a missing gas cap cause problems?
Can a missing gas cap cause problems? Driving without your gas cap will not harm your engine. Driving without your gas cap will not cause you to lose fuel. There is a flapper valve built into your car, and it will stop fuel from flowing out of your tank. Driving without your gas cap will not deliver harmful fumes into your passenger cabin. What are the symptoms of a bad fuel cap? Symptoms of a Bad or Failing Fuel Filler Cap 1 Cap does not tighten properly. 2 Fuel smell from the vehicle. 3 Check Engine Light comes on. Can...